/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf --buchiautomizer.automaton.type.for.concurrent.programs RABIN_PETRI_NET -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.fs.rabin-petrinet-4c29625-m [2023-10-12 17:40:49,859 INFO L172 SettingsManager]: Resetting all preferences to default values... [2023-10-12 17:40:49,923 INFO L100 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Termination-32bit-Automizer_Default.epf [2023-10-12 17:40:49,948 INFO L114 SettingsManager]: Preferences different from defaults after loading the file: [2023-10-12 17:40:49,948 INFO L135 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-10-12 17:40:49,949 INFO L137 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-10-12 17:40:49,949 INFO L135 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-10-12 17:40:49,950 INFO L137 SettingsManager]: * Create parallel compositions if possible=false [2023-10-12 17:40:49,950 INFO L137 SettingsManager]: * Use SBE=true [2023-10-12 17:40:49,950 INFO L135 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-10-12 17:40:49,950 INFO L137 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-10-12 17:40:49,951 INFO L137 SettingsManager]: * Use old map elimination=false [2023-10-12 17:40:49,951 INFO L137 SettingsManager]: * Use external solver (rank synthesis)=false [2023-10-12 17:40:49,951 INFO L137 SettingsManager]: * Use only trivial implications for array writes=true [2023-10-12 17:40:49,951 INFO L137 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-10-12 17:40:49,952 INFO L135 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-10-12 17:40:49,952 INFO L137 SettingsManager]: * sizeof long=4 [2023-10-12 17:40:49,952 INFO L137 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-10-12 17:40:49,952 INFO L137 SettingsManager]: * Overapproximate operations on floating types=true [2023-10-12 17:40:49,953 INFO L137 SettingsManager]: * sizeof POINTER=4 [2023-10-12 17:40:49,953 INFO L137 SettingsManager]: * Check division by zero=IGNORE [2023-10-12 17:40:49,956 INFO L137 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-10-12 17:40:49,956 INFO L137 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-10-12 17:40:49,956 INFO L137 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-10-12 17:40:49,957 INFO L137 SettingsManager]: * sizeof long double=12 [2023-10-12 17:40:49,957 INFO L137 SettingsManager]: * Check if freed pointer was valid=false [2023-10-12 17:40:49,958 INFO L137 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-10-12 17:40:49,958 INFO L137 SettingsManager]: * Use constant arrays=true [2023-10-12 17:40:49,958 INFO L137 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-10-12 17:40:49,958 INFO L135 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-10-12 17:40:49,958 INFO L137 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-10-12 17:40:49,959 INFO L135 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-10-12 17:40:49,959 INFO L137 SettingsManager]: * Trace refinement strategy=CAMEL [2023-10-12 17:40:49,960 INFO L135 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-10-12 17:40:49,960 INFO L137 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: Automaton type for concurrent programs -> RABIN_PETRI_NET [2023-10-12 17:40:50,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-10-12 17:40:50,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-10-12 17:40:50,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-10-12 17:40:50,186 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-10-12 17:40:50,186 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2023-10-12 17:40:50,187 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2023-10-12 17:40:50,188 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2023-10-12 17:40:50,211 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-10-12 17:40:50,213 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2023-10-12 17:40:50,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-10-12 17:40:50,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-10-12 17:40:50,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-10-12 17:40:50,223 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,235 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-10-12 17:40:50,236 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-10-12 17:40:50,238 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-10-12 17:40:50,239 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-10-12 17:40:50,239 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-10-12 17:40:50,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,247 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,247 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,250 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,255 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,256 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-10-12 17:40:50,259 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-10-12 17:40:50,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-10-12 17:40:50,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-10-12 17:40:50,259 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/1) ... [2023-10-12 17:40:50,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:50,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:50,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:50,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-10-12 17:40:50,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-10-12 17:40:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-10-12 17:40:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-10-12 17:40:50,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-10-12 17:40:50,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-10-12 17:40:50,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-10-12 17:40:50,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-10-12 17:40:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-10-12 17:40:50,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-10-12 17:40:50,333 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-10-12 17:40:50,333 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-10-12 17:40:50,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-10-12 17:40:50,334 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-10-12 17:40:50,370 INFO L236 CfgBuilder]: Building ICFG [2023-10-12 17:40:50,372 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-10-12 17:40:50,480 INFO L277 CfgBuilder]: Performing block encoding [2023-10-12 17:40:50,492 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-10-12 17:40:50,492 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-10-12 17:40:50,494 INFO L201 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:40:50 BoogieIcfgContainer [2023-10-12 17:40:50,516 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-10-12 17:40:50,517 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-10-12 17:40:50,517 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-10-12 17:40:50,521 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-10-12 17:40:50,521 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:40:50,522 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 05:40:50" (1/2) ... [2023-10-12 17:40:50,523 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1a3e6b5d and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 05:40:50, skipping insertion in model container [2023-10-12 17:40:50,523 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-10-12 17:40:50,523 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:40:50" (2/2) ... [2023-10-12 17:40:50,524 INFO L332 chiAutomizerObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2023-10-12 17:40:50,567 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-10-12 17:40:50,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:40:50,608 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:40:50,608 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:40:50,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-10-12 17:40:50,611 INFO L82 GeneralOperation]: Start removeDead. Operand has 36 places, 32 transitions, 88 flow [2023-10-12 17:40:50,617 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 70 flow [2023-10-12 17:40:50,620 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-10-12 17:40:50,636 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:40:50,641 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 33 places, 26 transitions, 70 flow [2023-10-12 17:40:50,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 33 places, 26 transitions, 70 flow [2023-10-12 17:40:50,646 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2023-10-12 17:40:50,647 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-10-12 17:40:50,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 3/26 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 36 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 18. Up to 2 conditions per place. [2023-10-12 17:40:50,647 INFO L119 LiptonReduction]: Number of co-enabled transitions 144 [2023-10-12 17:40:50,944 INFO L134 LiptonReduction]: Checked pairs total: 106 [2023-10-12 17:40:50,944 INFO L136 LiptonReduction]: Total number of compositions: 12 [2023-10-12 17:40:50,955 INFO L305 stractBuchiCegarLoop]: Interprodecural is true [2023-10-12 17:40:50,955 INFO L306 stractBuchiCegarLoop]: Hoare is false [2023-10-12 17:40:50,956 INFO L307 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-10-12 17:40:50,956 INFO L308 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-10-12 17:40:50,956 INFO L309 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-10-12 17:40:50,956 INFO L310 stractBuchiCegarLoop]: Difference is false [2023-10-12 17:40:50,956 INFO L311 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-10-12 17:40:50,956 INFO L315 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == RabinPetriNetCegarLoop ======== [2023-10-12 17:40:50,957 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:40:50,960 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L58: Formula: (and (= v_i_19 v_sum1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_sum2_29) (= v_i_19 v_j_19)) InVars {sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} OutVars{sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} AuxVars[] AssignedVars[][13], 2:2A:[81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][2]][3:3A:[99] L22-1-->L22-1: Formula: (and (= (+ (select v_A_14 v_i_16) v_sum1_16) v_sum1_15) (= v_i_15 (+ v_i_16 1)) (< v_i_16 v_N_12)) InVars {sum1=v_sum1_16, A=v_A_14, N=v_N_12, i=v_i_16} OutVars{sum1=v_sum1_15, A=v_A_14, N=v_N_12, i=v_i_15} AuxVars[] AssignedVars[sum1, i][6]] [2023-10-12 17:40:50,965 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:50,966 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:40:50,967 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:40:50,967 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:50,970 INFO L337 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-10-12 17:40:50,970 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 22 places, 15 transitions, 48 flow [2023-10-12 17:40:50,972 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L58: Formula: (and (= v_i_19 v_sum1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_sum2_29) (= v_i_19 v_j_19)) InVars {sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} OutVars{sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} AuxVars[] AssignedVars[][13], 2:2A:[81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][2]][3:3A:[99] L22-1-->L22-1: Formula: (and (= (+ (select v_A_14 v_i_16) v_sum1_16) v_sum1_15) (= v_i_15 (+ v_i_16 1)) (< v_i_16 v_N_12)) InVars {sum1=v_sum1_16, A=v_A_14, N=v_N_12, i=v_i_16} OutVars{sum1=v_sum1_15, A=v_A_14, N=v_N_12, i=v_i_15} AuxVars[] AssignedVars[sum1, i][6]] [2023-10-12 17:40:50,972 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:50,972 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-10-12 17:40:50,973 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:40:50,973 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:50,976 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [102] $Ultimate##0-->L58: Formula: (and (= v_i_19 v_sum1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_sum2_29) (= v_i_19 v_j_19)) InVars {sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} OutVars{sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} AuxVars[] AssignedVars[] 42#[L58]true [81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L22-1, L58-1]true [2023-10-12 17:40:50,977 INFO L750 eck$LassoCheckResult]: Loop: 44#[L22-1, L58-1]true [99] L22-1-->L22-1: Formula: (and (= (+ (select v_A_14 v_i_16) v_sum1_16) v_sum1_15) (= v_i_15 (+ v_i_16 1)) (< v_i_16 v_N_12)) InVars {sum1=v_sum1_16, A=v_A_14, N=v_N_12, i=v_i_16} OutVars{sum1=v_sum1_15, A=v_A_14, N=v_N_12, i=v_i_15} AuxVars[] AssignedVars[sum1, i] 44#[L22-1, L58-1]true [2023-10-12 17:40:50,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:50,984 INFO L85 PathProgramCache]: Analyzing trace with hash 4204, now seen corresponding path program 1 times [2023-10-12 17:40:50,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:50,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434847632] [2023-10-12 17:40:50,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:50,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:51,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:51,098 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:51,098 INFO L85 PathProgramCache]: Analyzing trace with hash 130, now seen corresponding path program 1 times [2023-10-12 17:40:51,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:51,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648196936] [2023-10-12 17:40:51,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:51,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:51,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,105 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,110 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:51,112 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:51,112 INFO L85 PathProgramCache]: Analyzing trace with hash 130423, now seen corresponding path program 1 times [2023-10-12 17:40:51,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:51,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086289157] [2023-10-12 17:40:51,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:51,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:51,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:51,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,132 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:51,215 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:40:51,216 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:40:51,216 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:40:51,216 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:40:51,216 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:40:51,216 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:51,216 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:40:51,217 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:40:51,217 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-fun-alt.wvr.bpl_BEv2_Iteration1_Lasso [2023-10-12 17:40:51,217 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:40:51,217 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:40:51,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:51,266 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:51,269 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:51,271 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:51,346 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:40:51,349 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:40:51,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:51,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:51,355 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:51,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-10-12 17:40:51,357 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:51,365 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:51,365 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:51,365 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:51,365 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:51,376 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:51,377 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:51,395 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:40:51,405 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-10-12 17:40:51,405 INFO L444 ModelExtractionUtils]: 9 out of 16 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:40:51,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:51,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:51,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:51,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-10-12 17:40:51,415 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:40:51,424 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:40:51,425 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:40:51,426 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(i, N) = -1*i + 1*N Supporting invariants [] [2023-10-12 17:40:51,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-10-12 17:40:51,437 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:40:51,460 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:51,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:51,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:40:51,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:51,487 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:40:51,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:51,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:40:51,527 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:40:51,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:40:51,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:40:51,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-10-12 17:40:51,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 2 letters. Loop has 1 letters. [2023-10-12 17:40:51,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:51,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:40:51,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:51,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 2 letters. Loop has 2 letters. [2023-10-12 17:40:51,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:51,627 INFO L430 stractBuchiCegarLoop]: Abstraction has has 26 places, 60 transitions, 312 flow [2023-10-12 17:40:51,627 INFO L337 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-10-12 17:40:51,628 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 26 places, 60 transitions, 312 flow [2023-10-12 17:40:51,630 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L58: Formula: (and (= v_i_19 v_sum1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_sum2_29) (= v_i_19 v_j_19)) InVars {sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} OutVars{sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} AuxVars[] AssignedVars[][52], 2:2A:[81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][8], 4:3A:[84] L58-1-->L33-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1][18]][5:4A:[97] L33-1-->L33-1: Formula: (and (= v_j_15 (+ v_j_16 1)) (= (+ (select v_A_12 v_j_16) v_sum2_26) v_sum2_25) (< v_j_16 v_M_10)) InVars {A=v_A_12, sum2=v_sum2_26, M=v_M_10, j=v_j_16} OutVars{A=v_A_12, sum2=v_sum2_25, M=v_M_10, j=v_j_15} AuxVars[] AssignedVars[sum2, j][43]] [2023-10-12 17:40:51,631 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:51,631 INFO L124 PetriNetUnfolderBase]: 1/4 cut-off events. [2023-10-12 17:40:51,631 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-10-12 17:40:51,632 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:51,632 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [102] $Ultimate##0-->L58: Formula: (and (= v_i_19 v_sum1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_sum2_29) (= v_i_19 v_j_19)) InVars {sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} OutVars{sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} AuxVars[] AssignedVars[] 42#[L58]true [81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L22-1, L58-1]true [84] L58-1-->L33-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 79#[L22-1, L59, L33-1]true [2023-10-12 17:40:51,632 INFO L750 eck$LassoCheckResult]: Loop: 79#[L22-1, L59, L33-1]true [97] L33-1-->L33-1: Formula: (and (= v_j_15 (+ v_j_16 1)) (= (+ (select v_A_12 v_j_16) v_sum2_26) v_sum2_25) (< v_j_16 v_M_10)) InVars {A=v_A_12, sum2=v_sum2_26, M=v_M_10, j=v_j_16} OutVars{A=v_A_12, sum2=v_sum2_25, M=v_M_10, j=v_j_15} AuxVars[] AssignedVars[sum2, j] 79#[L22-1, L59, L33-1]true [2023-10-12 17:40:51,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:51,634 INFO L85 PathProgramCache]: Analyzing trace with hash 130408, now seen corresponding path program 1 times [2023-10-12 17:40:51,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:51,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720441853] [2023-10-12 17:40:51,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:51,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,660 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:51,661 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:51,661 INFO L85 PathProgramCache]: Analyzing trace with hash 128, now seen corresponding path program 1 times [2023-10-12 17:40:51,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:51,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578773189] [2023-10-12 17:40:51,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:51,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:51,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:51,668 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:51,668 INFO L85 PathProgramCache]: Analyzing trace with hash 4042745, now seen corresponding path program 1 times [2023-10-12 17:40:51,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:51,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339794777] [2023-10-12 17:40:51,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:51,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:51,683 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:51,781 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:40:51,781 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:40:51,781 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:40:51,781 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:40:51,782 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:40:51,782 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:51,782 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:40:51,782 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:40:51,782 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-fun-alt.wvr.bpl_BEv2_Iteration2_Lasso [2023-10-12 17:40:51,782 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:40:51,782 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:40:51,783 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:51,786 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:51,799 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:51,802 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:51,804 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:51,808 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:51,877 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:40:51,877 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:40:51,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:51,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:51,895 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:51,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-10-12 17:40:51,898 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:51,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:51,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:51,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:51,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:51,908 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:51,908 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:51,919 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:51,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:51,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:51,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:51,930 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:51,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-10-12 17:40:51,935 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:51,943 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:51,943 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:51,943 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:51,943 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:51,950 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:51,950 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:51,962 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:40:51,975 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:40:51,975 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 9 variables to zero. [2023-10-12 17:40:51,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:51,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:52,027 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:52,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-10-12 17:40:52,029 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:40:52,046 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:40:52,046 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:40:52,046 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(M, j) = 1*M - 1*j Supporting invariants [] [2023-10-12 17:40:52,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:52,059 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:40:52,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:52,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:52,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:40:52,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:52,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:52,102 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:40:52,102 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:52,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:40:52,103 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:40:52,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-10-12 17:40:52,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:52,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:40:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:40:52,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-10-12 17:40:52,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 3 letters. Loop has 1 letters. [2023-10-12 17:40:52,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:52,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:40:52,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:52,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 3 letters. Loop has 2 letters. [2023-10-12 17:40:52,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:52,185 INFO L430 stractBuchiCegarLoop]: Abstraction has has 30 places, 240 transitions, 1728 flow [2023-10-12 17:40:52,185 INFO L337 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-10-12 17:40:52,185 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 30 places, 240 transitions, 1728 flow [2023-10-12 17:40:52,188 ERROR L47 etriNetUnfolderRabin]: [1:1A:[102] $Ultimate##0-->L58: Formula: (and (= v_i_19 v_sum1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_sum2_29) (= v_i_19 v_j_19)) InVars {sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} OutVars{sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} AuxVars[] AssignedVars[][209], 2:2A:[81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0][33], 4:3A:[84] L58-1-->L33-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1][73], 7:4A:[87] L59-->L44-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0][15]][8:5A:[95] L44-1-->L44-1: Formula: (and (= (+ (select v_A_10 v_k_16) v_sum2_22) v_sum2_21) (= v_k_15 (+ v_k_16 1)) (< v_k_16 v_N_8)) InVars {A=v_A_10, sum2=v_sum2_22, N=v_N_8, k=v_k_16} OutVars{A=v_A_10, sum2=v_sum2_21, N=v_N_8, k=v_k_15} AuxVars[] AssignedVars[sum2, k][206]] [2023-10-12 17:40:52,189 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-10-12 17:40:52,189 INFO L124 PetriNetUnfolderBase]: 2/7 cut-off events. [2023-10-12 17:40:52,189 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-10-12 17:40:52,189 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is not empty [2023-10-12 17:40:52,190 INFO L748 eck$LassoCheckResult]: Stem: 40#[$Ultimate##0]true [102] $Ultimate##0-->L58: Formula: (and (= v_i_19 v_sum1_19) (= v_M_14 v_k_19) (< v_M_14 v_N_16) (= v_i_19 0) (<= 0 v_M_14) (= v_i_19 v_sum2_29) (= v_i_19 v_j_19)) InVars {sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} OutVars{sum1=v_sum1_19, sum2=v_sum2_29, N=v_N_16, M=v_M_14, k=v_k_19, j=v_j_19, i=v_i_19} AuxVars[] AssignedVars[] 42#[L58]true [81] L58-->L22-1: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0] 44#[L22-1, L58-1]true [84] L58-1-->L33-1: Formula: (and (= 2 v_thread2Thread1of1ForFork1_thidvar1_2) (= 2 v_thread2Thread1of1ForFork1_thidvar0_2)) InVars {} OutVars{thread2Thread1of1ForFork1_thidvar0=v_thread2Thread1of1ForFork1_thidvar0_2, thread2Thread1of1ForFork1_thidvar1=v_thread2Thread1of1ForFork1_thidvar1_2} AuxVars[] AssignedVars[thread2Thread1of1ForFork1_thidvar0, thread2Thread1of1ForFork1_thidvar1] 79#[L22-1, L59, L33-1]true [87] L59-->L44-1: Formula: (and (= 3 v_thread3Thread1of1ForFork2_thidvar0_2) (= 3 v_thread3Thread1of1ForFork2_thidvar1_2) (= 3 v_thread3Thread1of1ForFork2_thidvar2_2)) InVars {} OutVars{thread3Thread1of1ForFork2_thidvar2=v_thread3Thread1of1ForFork2_thidvar2_2, thread3Thread1of1ForFork2_thidvar1=v_thread3Thread1of1ForFork2_thidvar1_2, thread3Thread1of1ForFork2_thidvar0=v_thread3Thread1of1ForFork2_thidvar0_2} AuxVars[] AssignedVars[thread3Thread1of1ForFork2_thidvar2, thread3Thread1of1ForFork2_thidvar1, thread3Thread1of1ForFork2_thidvar0] 113#[L22-1, L60, L33-1, L44-1]true [2023-10-12 17:40:52,190 INFO L750 eck$LassoCheckResult]: Loop: 113#[L22-1, L60, L33-1, L44-1]true [95] L44-1-->L44-1: Formula: (and (= (+ (select v_A_10 v_k_16) v_sum2_22) v_sum2_21) (= v_k_15 (+ v_k_16 1)) (< v_k_16 v_N_8)) InVars {A=v_A_10, sum2=v_sum2_22, N=v_N_8, k=v_k_16} OutVars{A=v_A_10, sum2=v_sum2_21, N=v_N_8, k=v_k_15} AuxVars[] AssignedVars[sum2, k] 113#[L22-1, L60, L33-1, L44-1]true [2023-10-12 17:40:52,190 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:52,190 INFO L85 PathProgramCache]: Analyzing trace with hash 4042735, now seen corresponding path program 1 times [2023-10-12 17:40:52,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:52,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623880539] [2023-10-12 17:40:52,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:52,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:52,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:52,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:52,201 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:52,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:52,202 INFO L85 PathProgramCache]: Analyzing trace with hash 126, now seen corresponding path program 1 times [2023-10-12 17:40:52,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:52,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197838185] [2023-10-12 17:40:52,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:52,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:52,205 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:52,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:52,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:52,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:52,207 INFO L85 PathProgramCache]: Analyzing trace with hash 125324880, now seen corresponding path program 1 times [2023-10-12 17:40:52,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-10-12 17:40:52,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498130401] [2023-10-12 17:40:52,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-10-12 17:40:52,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-10-12 17:40:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:52,213 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-10-12 17:40:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-10-12 17:40:52,219 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-10-12 17:40:52,304 INFO L210 LassoAnalysis]: Preferences: [2023-10-12 17:40:52,304 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-10-12 17:40:52,305 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-10-12 17:40:52,305 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-10-12 17:40:52,305 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-10-12 17:40:52,305 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:52,305 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-10-12 17:40:52,305 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-10-12 17:40:52,305 INFO L133 ssoRankerPreferences]: Filename of dumped script: sum-fun-alt.wvr.bpl_BEv2_Iteration3_Lasso [2023-10-12 17:40:52,305 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-10-12 17:40:52,305 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-10-12 17:40:52,306 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:52,308 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:52,319 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:52,322 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:52,325 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:52,327 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:52,329 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:52,331 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:52,333 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:52,335 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-10-12 17:40:52,433 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-10-12 17:40:52,434 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-10-12 17:40:52,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:52,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:52,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:52,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-10-12 17:40:52,439 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:52,446 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:52,446 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:52,446 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:52,446 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:52,448 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:52,448 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:52,453 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:52,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:52,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:52,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:52,464 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:52,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-10-12 17:40:52,467 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:52,474 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:52,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:52,475 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:52,475 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:52,477 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:52,477 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:52,488 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-10-12 17:40:52,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:52,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:52,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:52,525 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:52,533 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-10-12 17:40:52,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-10-12 17:40:52,540 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-10-12 17:40:52,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-10-12 17:40:52,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-10-12 17:40:52,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-10-12 17:40:52,544 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-10-12 17:40:52,544 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-10-12 17:40:52,565 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-10-12 17:40:52,572 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-10-12 17:40:52,572 INFO L444 ModelExtractionUtils]: 6 out of 13 variables were initially zero. Simplification set additionally 4 variables to zero. [2023-10-12 17:40:52,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-10-12 17:40:52,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-10-12 17:40:52,577 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-10-12 17:40:52,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-10-12 17:40:52,582 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-10-12 17:40:52,603 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2023-10-12 17:40:52,603 INFO L513 LassoAnalysis]: Proved termination. [2023-10-12 17:40:52,603 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(k, N) = -1*k + 1*N Supporting invariants [] [2023-10-12 17:40:52,619 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-10-12 17:40:52,620 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-10-12 17:40:52,636 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-10-12 17:40:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:52,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 2 conjunts are in the unsatisfiable core [2023-10-12 17:40:52,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:52,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-10-12 17:40:52,651 WARN L260 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2023-10-12 17:40:52,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-10-12 17:40:52,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-10-12 17:40:52,652 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-10-12 17:40:52,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-10-12 17:40:52,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-10-12 17:40:52,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 176 transitions. [2023-10-12 17:40:52,705 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 4 letters. Loop has 1 letters. [2023-10-12 17:40:52,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:52,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 5 letters. Loop has 1 letters. [2023-10-12 17:40:52,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:52,706 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 176 transitions. Stem has 4 letters. Loop has 2 letters. [2023-10-12 17:40:52,706 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-10-12 17:40:52,706 INFO L430 stractBuchiCegarLoop]: Abstraction has has 34 places, 960 transitions, 8832 flow [2023-10-12 17:40:52,706 INFO L337 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-10-12 17:40:52,706 INFO L67 RabinIsEmpty]: Start rabinIsEmpty. Operand has 34 places, 960 transitions, 8832 flow [2023-10-12 17:40:52,731 INFO L124 PetriNetUnfolderBase]: 90/133 cut-off events. [2023-10-12 17:40:52,731 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2023-10-12 17:40:52,731 INFO L72 RabinIsEmpty]: Finished rabinIsEmpty language is empty [2023-10-12 17:40:52,745 INFO L201 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.10 05:40:52 BoogieIcfgContainer [2023-10-12 17:40:52,745 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-10-12 17:40:52,746 INFO L158 Benchmark]: Toolchain (without parser) took 2532.55ms. Allocated memory was 226.5MB in the beginning and 323.0MB in the end (delta: 96.5MB). Free memory was 176.6MB in the beginning and 238.3MB in the end (delta: -61.6MB). Peak memory consumption was 35.0MB. Max. memory is 8.0GB. [2023-10-12 17:40:52,746 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.23ms. Allocated memory is still 226.5MB. Free memory is still 177.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-10-12 17:40:52,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.75ms. Allocated memory is still 226.5MB. Free memory was 176.6MB in the beginning and 175.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:40:52,750 INFO L158 Benchmark]: Boogie Preprocessor took 18.88ms. Allocated memory is still 226.5MB. Free memory was 175.1MB in the beginning and 174.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-10-12 17:40:52,750 INFO L158 Benchmark]: RCFGBuilder took 257.53ms. Allocated memory is still 226.5MB. Free memory was 174.0MB in the beginning and 196.2MB in the end (delta: -22.3MB). Peak memory consumption was 18.5MB. Max. memory is 8.0GB. [2023-10-12 17:40:52,751 INFO L158 Benchmark]: BuchiAutomizer took 2228.14ms. Allocated memory was 226.5MB in the beginning and 323.0MB in the end (delta: 96.5MB). Free memory was 196.2MB in the beginning and 238.3MB in the end (delta: -42.0MB). Peak memory consumption was 54.2MB. Max. memory is 8.0GB. [2023-10-12 17:40:52,756 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.23ms. Allocated memory is still 226.5MB. Free memory is still 177.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.75ms. Allocated memory is still 226.5MB. Free memory was 176.6MB in the beginning and 175.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.88ms. Allocated memory is still 226.5MB. Free memory was 175.1MB in the beginning and 174.0MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 257.53ms. Allocated memory is still 226.5MB. Free memory was 174.0MB in the beginning and 196.2MB in the end (delta: -22.3MB). Peak memory consumption was 18.5MB. Max. memory is 8.0GB. * BuchiAutomizer took 2228.14ms. Allocated memory was 226.5MB in the beginning and 323.0MB in the end (delta: 96.5MB). Free memory was 196.2MB in the beginning and 238.3MB in the end (delta: -42.0MB). Peak memory consumption was 54.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (0 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function N + -1 * i and consists of 4 locations. One deterministic module has affine ranking function M + -1 * j and consists of 4 locations. One deterministic module has affine ranking function -1 * k + N and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 4 iterations. TraceHistogramMax:0. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 240 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 237 mSDsluCounter, 162 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 48 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 204 IncrementalHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 114 mSDtfsCounter, 204 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso3 LassoPreprocessingBenchmarks: Lassos: inital48 mio100 ax100 hnf100 lsp65 ukn93 mio100 lsp72 div100 bol100 ite100 ukn100 eq159 hnf92 smp100 dnf100 smp100 tf100 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 75ms VariablesStem: 4 VariablesLoop: 3 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.3s, 33 PlacesBefore, 22 PlacesAfterwards, 26 TransitionsBefore, 15 TransitionsAfterwards, 144 CoEnabledTransitionPairs, 2 FixpointIterations, 6 TrivialSequentialCompositions, 6 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 12 TotalNumberOfCompositions, 106 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 106, independent: 106, independent conditional: 0, independent unconditional: 106, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 82, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 82, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 106, independent: 24, independent conditional: 0, independent unconditional: 24, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 82, unknown conditional: 0, unknown unconditional: 82] , Statistics on independence cache: Total cache size (in pairs): 18, Positive cache size: 18, Positive conditional cache size: 0, Positive unconditional cache size: 18, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 RESULT: Ultimate proved your program to be correct! [2023-10-12 17:40:52,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-10-12 17:40:52,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...